TYM T431 Operator's Manual
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TYM T431 Operator's Manual

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TYM
OPERATOR'S MANUAL
FOR
TRACTORS
(T431/T451)
#604-9, Namsan-dong, Changwon-city, Kyungnam, Korea ■ ■ ■ ■ TEL:82-55-279-4379, FAX:82-55-279-4447 ■ ■ ■ ■ www.tym.co.kr

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  • Page 1 OPERATOR’S MANUAL TRACTORS (T431/T451) #604-9, Namsan-dong, Changwon-city, Kyungnam, Korea ■ ■ ■ ■ TEL:82-55-279-4379, FAX:82-55-279-4447 ■ ■ ■ ■ www.tym.co.kr...
  • Page 2 FOREWARD Thank you very much for purchasing our tractor, which, we feel sure, will give you many years of troubling the service. The introduction in this manual set out the correct manner of operating, maintaining and checking the tractor to ensure long-term durability. Please ensure correct operation of the tractor as incorrect operation can cause substantial mechanical damage as well as cause accidents with the associated injuries.

  • Page 3: Table Of Contents

    CONTENTS Sr. No. Description Page No. Tractor Identification About this manual Introduction & description Owner assistance ROPS (Roll over protection structures) Safety instructions, Do’s & Don’ts 10~23 Safety signs 24~27 Universal symbols Section A Controls, Instruments & Operations 29~50 Section B Lubrication &...

  • Page 4: Tractor Identification

    TRACTOR IDENTIFICATION The engine number is stamped on the left hand side of the engine block. The chassis number is shown on the left hand side of the tractor as shown in the drawing. Illustration A WARRANTY OF THE PRODUCT. The manufacturer warrants this product and full details of the warranty are provided on a separate warranty schedule.

  • Page 5: About This Manual

    This manual has been prepared to assist you in following/adopting the correct procedure for running-in operation and maintenance of your new TYM CO.,LTD (Here in after refer to TYM) Tractor. Your Tractor has been designed and built to give maximum performance, with good fuel economy and ease of operation under a wide variety of operating conditions.

  • Page 6: Introduction & Description

    Introduction & Description TRACTOR AN INTRODUCTION The word, ’Tractor’ has been derived from ‘Traction’ which means pulling. A Tractor is required to pull or haul an equipment, implement or trolley which are coupled to the Tractor body through suitable linkage. A Tractor can also be used as a prime mover as it has a power outlet source which is also called Power Take or PTO shaft.
  • Page 7 ■ ■ ■ ■ Engine The tractors are fitted with vertical, Water-cooled 4-cycle and spherical chamber type KUBOTA ENGINES(T431) ■ ■ ■ ■ Clutch and Transmission A single plate dry clutch(10.24″diameter) is used on these tractors. Tractor with IPTO(Independent Power Take Off) are fitted with hydraulic Clutch Assy. The transmission Gear box has sixteen forward &...
  • Page 8 ■ ■ ■ ■ Steering It consists of Hydrostatic Power steering system, which has a hydraulic cylinder and tandem type hydraulic pump ■ ■ ■ ■ Electrical System A 12 Volt Lead Acid Propylene Battery is used to activate the Engine through the Starter Motor and the Electrical system comprising Horn, Head Lamp.

  • Page 9: Owner Assistance

    OWNER ASSISTANCE We at TYM CO.,LTD and your Dealer/Distributor wants you to be completely satisfied with your investment. Normally any problems with your equipment will be handled by your Dealer/Distributor’s Service Departments, however, misunderstanding can occur. If you feel that your problem has not been handled to your satisfaction, we suggest the following.
  • Page 10 The objective of the frame or cab structure is to protect the operator in the event of a roll over and they are designed to support the entire weight of the tractor in that event. Each TYM ROPS frame or cab structure is designed and has been tested to meet industry and or Government standards.
  • Page 11 Damage of the ROPS If the tractor has rolled over or the ROPS has damaged (such as striking an overhead object during transport), It must be replaced to provide the original protection. After an accident, check for damages to the 1.ROPS.2.Seat 3.seat belt & seat mountings. Before you operate a Tractor, replace all damaged parts.
  • Page 12 Seat Adjusting Lever Fig.1 NOTE: Do not use solvents to clean the seat. Use warm water with a little detergent added. Before operating a Tractor it is important to adjust the seat to the most comfortable position & check whether it is properly locked in its position. Figure 1 identifies the seat fitted to your Tractor. FOR Sliding seat To select Seat position, move Adjusting lever and slide Seat closer to or away from Dash panel and To select Seat position, move Adjusting lever and slide Seat closer to or away from Dash panel and...

  • Page 13: Safety Signs

    SAFETY INSTRUCTIONS RECOGNIZE SAFETY INFORMATION This symbol means ATTENTION! YOUR SAFETY IS INVOLVED. The message that follows the symbol contains important information about safety. Carefully read the message SIGNAL WORDS. A signal word―DANGER, WARNING OR CAUTION―is DANGER used with safety alert symbol. DANGER identifies the most serious hazards.
  • Page 14 USE OF ROPS AND SEAT BELT The Roll Over Protective Structure(ROPS) has been certified to industry and/or government standards. Any damage or alternation to the ROPS, mounting hard-ware, or seat belt voids the certification and will reduce or eliminate protection for the operator in the event of a roll-over.
  • Page 15 HANDLE FUEL SAFELY-AVOID FIRES Handle fuel with care; it is highly flammable. Do not refuel the Tractor while smoking or near open flame or sparks. Always stop engine before refueling Tractors. Always keep your tractor clean of accumulated grease, and debris. Always clean up spilled fuel.
  • Page 16 AVOID HIGH-PRESSURE FLUIDS Escaping fluid under pressure can penetrate the skin causing serious injury. Keep hands and body away from pinholes and nozzles, which eject fluids under high pressure. If ANY fluid is injected into the skin. Consult your doctor immediately. PREVENT BATTERY EXPLOSIONS Keep sparks, lighted matches, and open flame away from the top of battery.
  • Page 17 WORK IN VENTILATED AREA Do not start the Tractor in an enclosed building unless the doors & windows are open for proper ventilation, as tractor fumes can cause sickness or death. If it is necessary to run an engine in an enclosed area remove the exhaust fumes by connecting exhaust pipe extension.
  • Page 18 SAFE OPERATION OF YOUR TRACTOR The manufacturer of your tractor has made every effort to make it as safe as is humanly possible. Beyond this point it is the responsibility of the operator to avoid accidents and we ask that you read and implement our suggestions for your safety.
  • Page 19 SAFETY TIPS DURING MAINTENANCE 1. At least on a daily basis check all oil levels. Water level in the radiator and electrolyte level in the battery and perform services according to the service schedule. 2. Ensure tire pressure are even and the correct pressure for the job being done is maintained. 3.
  • Page 20 ► ► ► ► MOUNTING AND DEMOUNTING IMPLEMENTS (1)Ensure that all mounting and removal of implements is done on safe flat ground. Ensure no one is between the Tractor and implement and do not get under the implement to avoid accidental injuries.
  • Page 21 The following precautions are suggested to help prevent accidents. A careful operator is the best operator. Most accidents can be avoided by observing certain precautions .Read and take the following precautions before operating the Tractor to prevent accidents. Tractor should be operated only by those who are responsible and properly trained to do so.
  • Page 22 ■ ■ ■ ■ Operating the tractor 1. Before starting the tractor apply the parking brake, place the PTO (Power Take Off) lever in the “OFF” position, the hydraulic control levers in the downward position, the remote control valve levers in the neutral position( if fitted) and the transmission in neutral. 2.
  • Page 23 ■ ■ ■ ■ Driving the tractor 1. Watch where you are going especially at row ends, on roads, around trees and low hanging obstacles. 2. To avoid upsets, drive the tractor with care and at speeds compatible with safety, especially when operating over rough ground, crossing ditches or slopes, and when turning at corners.
  • Page 24 7.Wipe up spilled fuel immediately. 8.Always tighten the fuel cap securely. 9.If the original fuel tank cap is lost, replace it with genuine cap. A none approved cap may not be safe. 10.Do not drive equipment near open fire. 11.Never use fuel for cleaning purpose. 12.Arrange fuel purchases so that winter grade fuel are not held over and used in the spring.
  • Page 25 DO’S AND DON’T’S DO’S-For Better performance DO-Ensure that safety shields are in place and in good condition. DO-Read all operating instructions before commencing to operate Tractor. DO-Carry out all maintenance tasks without fail. DO-Keep the air cleaner clean. DO -Ensure that the correct grade of lubricating oils is used and that they are replenished and changed at the recommended intervals.
  • Page 26 DON’T-Use the independent brakes for making turns on the highway or at high speeds. DON’T-Refuel the tractor with the engine running. DON’T-Mount or dismount from the right side of the tractor. DON’T-Temper the hydraulic control levers’ upper limit stops. DON’T-Use draft control lever for lifting of implements. DON’T-Start the engine with the PTO engaged.
  • Page 27 SAFETY SIGNS (Replace all missing, damaged or illegible signs) GENERAL SAFETY INFORMATION IMPORTANT: This “General safety Information” should be kept with the machine at all times as reference data. This symbol means ATTENTION! YOUR SAFETY IS INVOLVED. The message that follows the symbol contains important information about safety. Follow recommended precautions and safe operating practice.
  • Page 28 CAUTION Warning KEEP HANDS AND CLOTHING TO PROTECT ENGINE AND AWAY FROM ROTATING FAN AND BELTS HYDRAULIC COMPONENTS. TO PREVENT SERIOUS INJURY ● Idle engine for 1 minute before shut down or full load Location: On Radiator bracket operation. side LH&RH ●...
  • Page 29 DANGER WARNING ● Pull only from drawbar. Pulling from any BLINDNESS CAN RESULT FROM BATTERY EXPLOSION. other point can cause rear overturn. KEEP SPARKS OR OPEN ● Do not operate with unshielded PTO. FRAMES AWAY FROM ● Disengage PTO and stop engine before BATTERY.
  • Page 30 UNIVERSAL SYMBOLS Some of the universal symbols have been shown below with an indication of their meaning Engine speed Pressured- Corrosive rev/minX100) open slowly substance ”Tortoise” Hours, Continuous Slow or recorded variable minimum Setting Engine ”Hare” fast or coolant Warning maximum temperature setting...

  • Page 31: Controls, Instruments & Operations

    Section - A Controls, Instruments Operations The following pages in this section detail the location and function of various instruments, switches and controls on your Tractor. Even if you operate other Tractors, you should read through this section of the manual and ensure that you are thoroughly familiar with the location and function of all the features of your New Tractor.
  • Page 32 DESCRIPTION OF TRACTOR CONTROLS INSTRUMENT AND SWITCHES ►Main switch [OFF]-The key can be inserted or removed [ON]- The electric circuit is on. [Glow]-Glow plugs preheat the combustion chamber [START]-The starter motor is engaged. When the key is released it will return to the ON position...
  • Page 33 ►LIGHT SWITCH, INDICATORS AND HORN High and low beam are operated On the main switch Position 1. High beam Position 2. Low beam ►TACHOMETER This meter shows the revolutions of the engine and the PTO shafts as well as the travel speed in top gear (1) Right needle Indicates speed in top gear.
  • Page 34 ► ► ► ► WARNING LIGHTS Charge lamp This light will go off as soon as the engine starts to run to indicate that the alternator is changing. (Please note, as broken fan belt can cause the light to come on, please stop the (Please note, as broken fan belt can cause the light to come on, please stop the engine as overheating can occur if not rectified immediately) Oil pressure lamp...
  • Page 35 ►Independent PTO ■ It must be noted that the PTO shift lever on the LHS below the driver seat should be shifted to position 1 (540 RPM) 0r 2 (1000RPM) depending upon the implement specification. In no case the specified speeds be crossed as serious damage to the tractor/implement to person can result because of this.
  • Page 36 First select the specified speed for the PTO by using the PTO shifter on the LHS, below the driver seat. Clutch Pedal. Hydraulic PTO Monitor PTO SHAFT Position ON/OFF Control Lamp on the Control Lever. dash panel Switch Switch Manual Either pressed or Either raised or Glows...
  • Page 37 TRACTOR CONTROLS ► ► ► ► Hand Throttle Pulling the hand throttle towards the driver increases revolutions. Pushing it away from the driver decreases revolution. ► ► ► ► Clutch disconnecting arm For long term storage of the Tractor it is possible to latch the clutch in the disengaged position.
  • Page 38 ► ► ► ► BRAKE PEDAL Right and left brake pedals are provided to assist in turning the tractor in the field. A connecting latch is provided to connect the right and left brake pedals for high speed or road use. In the interest of safety always use it on the road or at high speed as using one side only can cause rollovers.
  • Page 39 When changing from forward to reverse or back to forward again while in high range make sure the tractor comes to a stop before changing direction. Failure to do so is likely to result in damage to the mechanism and place the driver at risk of injury.
  • Page 40 Do not use high engine RPM when engaging Diff lock If the diff lock does not release after removing the foot from the diff lock pedal alternatively brake with the left and right brake until it gets released. important Never use the diff lock at high speed or on the road as this can cause roll over and injury.
  • Page 41 Your tractor is equipped with 4 Speed PTO (T431NEW/T451NEW) to suit range of applications and conditions. POSITION MODEL T431/T451 1,057 1,321 Always use the clutch when engaging or disengaging the PTO or changing PTO speed. Let the PTO driven implement come to a complete stop before changing.
  • Page 42 After finishing the work, always lower the implement to the ground and switch off the engine, Set the parking brake to avoid injuries and accidents . Warning Draft control lever ▶ Soil engaging implements can be set for precision work by using draft control. By mounting the lever forward.
  • Page 43 Exterior hydraulic Lever (Optional) Move the lever up or down and hold.This will raise or lower the implement (rotavator or hydraulic plow). Lever will return to neutral by itself. Important: -Do not hold the lever in the “pull” or “Push”position once the remote cylinder has reached the end of the stroke.as this will cause oil to flow through the relief valve.Forcing oil through the relief valve for extended...
  • Page 44 ▶Telescopic stabilizers adjustment The stabilizers are intended for limiting or preventing implement side movement. There should be no clearance(Position A) during implement transport and when working with grades,rollers mowers,seeders,drills and similar implements.However,a slight play is necessary(Position B) when working with ploughs,Harrows,ditchers,cultivators and the like:that is when working with “draft control”.The length of stabilizers is adjusted by removing the pin and rotating the turn buckle barrel...
  • Page 45 ▶ADJUSTMENT OF THE YOKE ROD ON THE LOWER LINK For different applications change the position of the yoke rod on the lower links as shown and insert the pin in the direction of the arrow Only use drawbar to tow and keep the 3 point linkage in raised position when toeing with the drawbar.
  • Page 46 DRIVING THE TRACTOR STARTING THE ENGINE Before starting the engine carry out the pre-operational checks as set out on page (1) Sit on the driver seat (2) Apply the footbrake. (3) Put the hydraulic lever in the down position. (4) Push down the clutch to activate the safety-starting switch. (5) Put the main gear lever in neutral (6) Insert the ignition key and turn it on (7) Ensure that the warning lights are working...
  • Page 47 WARMING UP When starting the engine allow it to warm up to operating temperature by allowing it to idle 5-10 minutes to ensure full lubrication and operating temperature. Failure to do so can shorten engine life substantially. ▶ ▶ ▶ ▶ WARMING UP IN COLD WEATHER Cold weather will change the viscosity of the oil, resulting in a reduced oil pumping capacity, which can cause damage to the engine if it is not warmed up correctly.
  • Page 48 Do not ”ride” the clutch to control speed, use a lower gear. Do not travel with your foot on the clutch pedal. Caution Always connect the brake pedals when traveling on the road. Never tow anything except with the drawbar. Do not tow loads which are too large for the tractor’s capacity to brake effectively especially in hilly terrain.
  • Page 49 UPHILL STARTS ON A STEEP SLOPE With the pedals connected together push down on the brake pedals and push down the clutch. Set all gear levers to low and the throttle to medium engine speed. Release the clutch and as it engages release the brake pedals. Adjust the throttle to the required speed.
  • Page 50 ▶ ▶ ▶ ▶ Fuel gauge. To avoid excessive condensation in the fuel tank refill at the end of each day’s work and ensure during the day that it does not drop to a low level where the fuel system will require bleeding to expel air in the system after refilling the tank.
  • Page 51 ▶ ▶ ▶ ▶ Track adjustment As some models of are front wheel assist the front track can be set in 2 positions The rear track can be set in 5 positions as illustrated. Unit : mm(in)

  • Page 52: Lubrication & Maintenance

    Section-B Lubrication & Maintenance This section gives full details of the service procedures necessary to maintain your Tractor at peak efficiency while the lubrication and maintenance chart provides a ready reference to these requirements.

  • Page 53: Engine Oil

    CHECKS AND SERVICE PRE-START CHECKS To avoid problems it is recommended that a range of checks be carried out daily before starting the tractor. For full details of the items and frequency please refer to the tables on page 57,58, and ▶Engine coolant Remove the radiator cap and ensure that the coolant is up to the filler neck and that it is clean with the correct anti-freeze...
  • Page 54 ▶ ▶ ▶ ▶ Fuel Use the fuel gauge to check the fuel level and top up if too low. It is a good practice to refill the tank immediately after use to avoid condensation ▶ ▶ ▶ ▶ Tire pressure The air pressure used in the tires has a direct bearing on the life of the tire and its performance in the field.
  • Page 55 ▶ ▶ ▶ ▶ Steering Ensure that the steering wheel does not have excessive free play. ▶ ▶ ▶ ▶ Brake Ensure that the left and right brakes are adjusted correctly so they operate simultaneously. The correct free play on the brake is 1.18-1.57 in (30~40 mm). ▶...
  • Page 56 MAINTENANCE AND ADJUSTMENT SCHEDULE Periodical check and service table ○ Check, Top-up or adjust ● Replace △ Clean or wash ★ Consult the service Dealer Item Service interval(hour meter,mark) Frequency Comment ○ ● ● ● ● ● ● Engine Change every To correct level on 100 hours the dipstick...
  • Page 57 Item Service interval(hour meter,mark) Frequency Comment ○ ● ● Trans Change every mission oil 300 hours after first 50 hours ○ Free play Check daily (0.78-1.18in) of clutch pedal ○ Free play Check daily (1.18-1.57) of brake pedal ○ State of Check daily Adjust so that both both brake...
  • Page 58 600 hours ○ Check the Check every Without loose or electric year broken terminals. wiring Without damaged or missing wiring. Correctly clamped DIVISION SIZE Air pressure (PSI) MODEL Front 9.5~16 30 psi T431 Tire /T451 Rear 13.6~26 21.3 psi...
  • Page 59 FILLING DIAGRAM & CAPACITY TABLE Filling point Fillings Quantity Liter (gal.) MODEL T431/T451 RADIATOR Fresh clean Water(L.L.C) 9ℓ(2.38 US gal) ENGINE API : CD/CE grades 7.0ℓ (1.85 gal) Above:25°C(77°F)…SAE30 or 10W-30 0°C to 25°C(32°F to 77°F)…SAE20 or 10W30 Below 0°C(32°F)…SAE 10W or 10W-30...
  • Page 60 Recommended Transmission oil ① RPM Tractor Hydraulic Fluid or Textron TDH Premium (CALTEX) ② TDH Oil or TDH Oil special (TEXACO) ③ Chevron 1000THF (CHEVRON) Opening method of each cover ▶ ▶ ▶ ▶ Opening method of Hood With the hood up,the hard nose can be removed by pulling forward,having first detached the hood lamp wiring harness.
  • Page 61 BLEEDING THE FUEL SYSTEM 1) Fuel filter cock 「 ON 」 2) Open the cock on the fuel injection pump 3) Fill the tank with fuel and turn the ignition key to on. 4) Start the engine and allow it to run for a while 4) Start the engine and allow it to run for a while 5) Close the fuel injection pump cock.
  • Page 62 When changing the oil always change the filter. Always use the same oil, as using different oils or specifications can cause damage. important Dispose off the old oil as per local regulations. ▶ ▶ ▶ ▶ Changing the transmission oil Remove the drain plug from bottom of the transmission and drain the oil.
  • Page 63 CLEANING AND CHANGING FILTERS ■ Engine oil filter Using a filter wrench turn the filter anti clockwise to remove it. Lightly smear the rubber seal on the new filter with oil to ensure, turn it clockwise until the seal contacts the base and then turn it another 2/3 turn to tighten it.
  • Page 64 ▶ ▶ ▶ ▶ HYDRAULIC OIL FILTER Remove the filter with a filter wrench. To replace, apply oil or grease on the seal, fit by hand until seal contacts bare, then turn it 2/3 turn further to tighten it check for leaks.
  • Page 65 CHANGING THE COOLANT (1) Open the tap in front of the gear pump to drain the coolant. (2) Open the radiator cap at the same time. (3) To give a thorough clean run a hose into the radiator and flush it out. (4) Close the tap and refill the radiator with a coolant mixture of water and corrosion inhibitor or anti freeze.
  • Page 66 Water or air under high pressure can distort the cooling fins on the radiator and reduce its efficiency. important GREASING THE TRACTOR Grease the tractor according to the service schedule (page 56 and Ensure that grease nipples are cleaned well before any attempt is made to grease them. Grease nipple Grease nipple...
  • Page 67 GAP ADJUSTMENT ON THE FRONT AXLE Lift the front with a hydraulic jack to get the wheels of Bolt the ground. Then loosen the nut and tighten the bolt fully and turn the bolt ½ to loosen again in order to roll the center pivot metal freely and tighten the nut again.
  • Page 68 Uneven adjustment of the left and right pedal will result in one sided braking when the pedals are connected and can cause serious accidents, especially at high speeds. Caution Double check to ensure free play is the same on both pedals ADJUSTING THE THROTTLE LEVER If this lever is either loose or difficult to move please consult your dealer for rectification of the problem.
  • Page 69 ▶ ▶ ▶ ▶ BATTERY MAINTENANCE Low temperatures will affect the performance of batteries so take particular care of it in winter. For long-term storage of the tractor remove the battery and keep it in a cool dry room. If it is on the tractor while stored, disconnect the negative terminal. Batteries will self discharge if left for a period of without use time.
  • Page 70 AIR CONDITIONER COMPRESSOR BELT ADJUSTMENT Check the compressor belt tension regularly and adjust If required. The correct tension is if the center of the belt is Pushed With a finger it moves in approx. 10 mm (0.39 in) as shown in the picture. To adjust the belt, loosen or tighten the nut as shown in the picture.
  • Page 71 CHECKING THE WIRING HARNESS AND FUSES Loose wires make inferior connections and damaged wires can cause short circuits, fires burnt wiring or reduce efficiency of components. Replace or repair any faulty wiring or insulation. If a fuse burns out again after it has been replaced, do not replace it with wire or a high capacity fuse, find the cause and rectify it or get an auto electrician to do so.
  • Page 72 3.MAINTENANCE For daily or short term storage Clean the tractor and remove all dirt from field work. Fill the fuel tank to avoid condensation and rust. Lower the implement to the ground.. Keep it in a machinery shed or, if not available cover the unit if left outside. In very cold conditions it is advisable to remove the battery and keep it inside in a warm environment.
  • Page 73 Long-term storage. When the tractor will not be used for a long time carry out the cleaning as for short term storage. Drain the oil and replace with new oil. Run the engine for approx. 5 min. to ensure that it has new oil throughout the engine. Drain the coolant from the radiator and remove the ignition key.

  • Page 74: Cabin

    Section - C CABIN The cab fully conforms to the international standard as far as safety and soundproofing are concerned. It can be provided with ventilation, heating and air-conditioning system. It is available in the following version.: ● Cab with ventilation and heating systems ●...
  • Page 75 Remember that steering, braking and operational performances are highly influenced by the implements mounted, the trailers transported and the ballasts applied to the tractor. When transporting heavy loads (exceeding the weight of the tractor) reduce the speed under 15 Km/h.. All the implements mounted onto the tractor must be safely secured.
  • Page 76 Working lamps (front and rear) : the working lamps are located on the cab roof (two in the front and two in the rear) .They are switched on by means of the special switches on the roof console Rearview mirrors.: the cab is provided with rearview mirrors on both sides.
  • Page 77 VENTILATION The ventilation unit is housed in the cab ceiling. To switch it on and adjust it, turn the electrical fan switch to the desired speed. The cab becomes slightly pressurized when the ventilation system is in operation, so that the fresh air can enter only by way of the filter installed in the rear section of the cab roof.

  • Page 78: Air Conditioning System

    Temperature control Blower control switch Set temperature control as required,fully clockwise Three position rocker switch For maximum cool and fully counterclockwise for heat Air conditioner switch To operate the air conditioner,the blower must be on.The blower speed temperature control and all vents must be adjusted to obtain the best cooling for the ambient temperature and dust conditions.
  • Page 79 Heating system General description The heater is switched on and adjusted by rotating the control knob at the roof console, then switching on the blower and setting the selector at the preferred speed . To warn the cab up quickly, the knob should be rotated fully clockwise and the blower set to speed 3. The screen is demisted or defrosted by air directed through a slot vent .
  • Page 80 SYSTEM CONFIGULATION 1.The heating system consist of two units: 1-Electric heater and blower unit installed behind roof console. 2-Power supplying set, consisting of an auxiliary alternator located front of the engine and driven by a belt directly linked to the engine pulley. If the air does not come out from the diffusers right away as soon as the system is started, turn off immediately and identify the fault.
  • Page 81 Air conditioning system The system is designed to ensure optimum temperature inside the cab and maximum comfort and safety for the operator. However, it is advisable to consult our specialized workshops whenever repairs or adjustments need to be performed. Do not approach the system with open flames, as any escape from the circuit may produce a lethal gas. 1.Alternator 2.
  • Page 82 Roof hatch( if equipped) Ventilation-push the latch towards the front of the tractor and then push the hatch up. Emergency Exit-Push firmly upwards to release the support struts from the lower retainer clips. Cab Air intake filter The《Paper》 filter is not suitable for the treatment of pesticides and so must be replaced by an《ACTIVE CARBON》FILTER available optionally.Once the pesticide treatment is finished, it is necessary to once...
  • Page 83 1. SAFETY PROCEDURES. This safety alert symbol indicates important safety messages in this manual. when you see this symbol, carefully read the message that follows and be alert to the possibility of personal injury or death Warning Refrigerant R134a is the most stable and easiest to 3.Keep refrigerant containers in the correct work with refrigerants now in use in air conditioner upright position.
  • Page 84 2. OPERATION The air conditioner system contains five major components: Compressor, receiver drier, expansion valve and evaporator. These components are connected by tubes and hoses and operate as a closed system. The air conditioner system is charged with R-134a refrigerant.. The compressor receives the refrigerant as a low pressure gas.
  • Page 85 3. Checking the air conditioning system. ① Economic friendly refrigerant : R134a 0.7∼0.85Kg. The presence of air and water in the system could jeopardize its efficiency. -The air is uselessly compressed by the compressor and no cooling effect is produced. -The moisture has a tendency rise to obstructions which prevent the cooling efficiency.
  • Page 86 Bubbles or foam visible Trouble shoot ● No bubble shown ●Too much of refrigerant deflate. Abnormal ●High pressure pipe is not abnormal High-pressure pipe is hot ● H.L pressure of the pressure abnormally. H-L pressure of the gauge needle indicates high pressure gauge needle abnormally.
  • Page 87 SYMPTOM CONDITION CAUSE REMEDY 2.Motor Weak from Motor is normal Air inlet clogged Remove pressure or Evaporator freezing Controlling don”t work minimum pressure Ventilator switch Replace the switch damage Compressor Replace Motor is abnormal Motor failure Replace Wire cut Replace Air leakage Duct leakage Check,tighten...

  • Page 88: Specifications

    Section - C Specifications The specifications on the following pages are given for your information and guidance. For further information concerning your Tractor and equipment, consult your Authorized Dealer/Distributor. Co.LTD. policy is one of continuous improvement and the right to change prices, specifications or equipment at any time without notice is reserved.
  • Page 89 SPECIFICATIONS Model: T431/T451 ENGINE CLUTCH Four strokes, Direct injection, water-cooled Type : Dry single plate Diesel Engine. Outer dia. X Inner dia. : 10.26 X 6.69″ Model :V2203-E TRANSMISSION No. of cylinders Type : synchro mesh Swept Volume :134.08 in³...
  • Page 90 ▶ ▶ ▶ ▶ MAIN SPECIFICATIONS Model T431/T451 Traveling Speed(Mile/h) Forward Reverse Overall length (mm) 3,500(138") (mile/h) (mile/h) Overall width(mm) 1,500 (59") Overall height(mm) 2,320 (91") 0.21 0.19 Distance between 1,900 (75") 0.30 0.28 shafts(mm) 0.41 0.37 Tread(mm) Front 1,284~1,346 0.54...

  • Page 91: Fuel Saving Tips

    FUEL SAVING TIPS To save fuel & oil in your tractor, following things should always be kept in mind. A) Air cleaning system 1) Clean the air cleaner regularly so that dust does not settle down. 2) For every 50 hours & everyday in sandy/dusty conditions. (a) Clean the air cleaner filter element with compressed air.
  • Page 92 E) Lubrication system 1) Always use recommended grade of oil. 2) Everyday before starting the engine, check the oil level with a dipstick & refill between the minimum & maximum level. 3) Charge the engine oil, Replace filter & “O” ring, as & when required. F) Cooling system 1) Check the fan belt tension regularly.

  • Page 93: Fault Tracing

    FAULT TRACING SYMPTOM CAUSE REMEDY Turning the main switch Clutch not pushed in Push the clutch in will not operate the starter Battery flat Charge or replace the battery Dealer to repair or replace Switch faulty Contact dealer for repair or replace Starter operates but not Low battery...
  • Page 94 SYMPTOM CAUSE REMEDY White smoking from the Oil level too high Reduce to correct quantity exhaust Shortage of or faulty fuel Contact dealer for repair Reduced performance of The injectors are clogged, Contact dealer for repair the engine carbon coated and sticking Low compression Leaking valve seat Contact dealer for repair...
  • Page 95 SYMPTOM CAUSE REMEDY The clutch slips Incorrect adjustment Adjust to correct free play Worm or burnt lining Contact dealer for repair The clutch does not Incorrect adjustment Adjust to correct free play disengage Rusty clutch lining Contact dealer for repair Brake not working Incorrect free play Worm Adjust to correct free play...
  • Page 96 SYMPTOM CAUSE REMEDY Steering wheel shaking Wrong toe-in Adjust toe-in Unequal tire pressure Inflate both to correct pressure Loose component Tighten or replace if worn Excessive play in the Worn steering shaft Contact dealer for repair steering Worn components Contact dealer for repair Flat battery Faulty wiring Repair,reconnect or tighten as...

  • Page 97: Wiring Diagram

    T431/T451 WIRING DIAGRAM...
  • Page 98 T431/T451 WIRING DIAGRAM...
  • Page 99 CABIN WIRING DIAGRAM...
  • Page 100 CABIN WIRING DIAGRAM...
  • Page 101 ▶Drawing for fixing position of the fuse ▶Wiring diagram of the electric instrument Fuse box Head lamp 12V45/45W 3 pieces of fuse blinks Direction signal lamp 12V21W Power for the working Stop lamp back light 21/5W Units for direction Meta panel light 12V3.4W Signal relay for the power Working lamp...
  • Page 102 Wiring diagram of Independent PTO...
  • Page 103 ◎ ◎ ◎ ◎ T431/T451 POWER TRAIN...
  • Page 104 TRACTOR HISTORY CARD DATE JOB CARD NATURE OF PARTS REPLACEMENT W/CLAIM NO. REMARKS DEFECT AND DATE...

  • Page 105: Service Record

    SERVICE RECORD DATE TRACTOR HOURS NATURE/TYPE OF REPAIR/SERVICE CARRIED OUT...
  • Page 106 DAILY OPERATION LOG DATE JOB DONE MACHINE HOURS FUEL ENGINE OIL CONSUMPTION TOPPED UP REMARKS START...

  • Page 107: Part Replacement Record

    PART REPLACEMENT RECORD DATE PART DESCRIPTION COST DATE PART COST DESCRIPTION...
  • Page 108 T431/T451 OPERATOR’S MANUAL FOR TRACTORS CODE NO. 1291-912-001-0 Printed on Dec. 2004 Edited on March 2008 6th EDITION...

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